My partner(m 36) and I (f 39) were at a little league baseball game with our kids. I have been with my partner, M, for 16 years. During the game, M was talking to his friend who had his ex wife present at the game to watch their son. I was sitting in front of them and I heard M say "I can see why you would do that." Implying he could see why his friend would have had sex with her. I turned around immediately and looked at him and he said " did you hear that" i just turned around and did everything to remain calm and not cry. I am so embarrassed to think he so openly talked about being attracted to this woman. And I confronted him once we got into the car and he said I didn't understand that she was crazy and he was talking shit about her. I am still upset and he's acting like he's the one that got hurt or like I said something to cause this. So I'm coming here in hopes of how to move on from this. Am I over reacting?